I'm going to hazard the *guess* (
guess, mind you) that it probably won't be all
that electrically dynamic.
Here's why:
Unlike a long period comet, the asteroid belt is just on the other side of our near neighbor, Mars. Most of the planets are
pretty much in electrical equilibrium these days. The plasmatails of the planets have been brushing around on close passes of planets with their neighbors and providing paths for charge equalization, and I would presume that Mars' plasmatail somehow manages to negotiate it's way through all the asteroids to equalize with Jupiter, so all the asteroids would therefore be pretty much balanced out with Mars and so we shouldn't expect any of the more extreme issues we see with the 'greater' comets (such as some of the earthquake events that were seen to
seemingly coincide with the orbital alignment of the Sun, the Earth, and Comet Elenin).
Therefore, I would suggest that - although there may be some minor cometary display from the asteroid - it won't be anything near what we see from more energetic comets.
Let's see if I'm right here in the near future, I guess.

Mike H.
"I have no fear to shout out my ignorance and let the Wise correct me, for every instance of such narrows the gulf between them and me." -- Michael A. Harrington